Oleg Shabrov made a cool game. You are ship and you are attacked by other ships and you can add other ships to your ship, making a fleet of ships!
But perhaps what is even more interesting about this is the process how he made it. He used AI, he used Lua (that was then somehow turned into JavaScript), and other cool tricks. On his LinkedIn post, he also talks about some monetization strategies. It's a really cool insight into the behind-the-scenes of game development.